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Old 11-06-2005, 10:21 AM   #1
Danny D
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Join Date: Aug 2005
Location: NJ
Posts: 18
Question Changing tire size /speedo issue

I have an 87 4wd that came with the optional 31 x10.50 x 15 tires from the factory. I want to put on a smaller tire with a smaller overall diameter. P235/75/15, the stock size tire size.

How do I get the speedometer/odometer to now read properly? Is it a speedometer gear change in the trans, or a program change in the computer?

Thanks for any help..
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